Do you have drawing of O-Ring and max. Torque We do not have a drawing of the O ring as it will be just 2 circles on a piece of paper. We do not have a max torque for the grout plug as different environments will require different torques to close the plug. You will know when it is closed as the plug becomes flush with the lip on the socket.
2. Do you have sample certificate raw material for straight socket bolt Please see attached thech sheet for bolt socket showing raw material.
3. The Consultants request to about random check product do you have
Sample inspection sheet. We do carryout planned inspection of all products while production is running however the check sheets are manual written internal paperwork and not for publication.
4. About straight bolt in body dia. Is 21.60-21.67 but thread is M 24 because ? the diameter of the shank of the bolt is the roll effective dia of the thread, this makes the bolt lighter and less expensive to galvanize and ship, it gives exactly the same tensile properties of a full size shank (24mm) as the weakest part of the bolt is the bottom of the thread potion which is the smallest diameter.